Gearing



K. ALQulsT.

v GEARING.

APPLICATION FILED JUNE 22, |9l8.

[y 151351,322' PatntedAug. 31,1920.

F'i'g-l.

loge/@uli M His seither-neg lspeed Ypinion meanson ahighY speed lshaft.

and low speedfgear wheel means on alow speed shaft through a pluralityof intermeg `diate speed shafts which transmit the load KARL AL'QUisT,oii1 SCHENECTADY, NEW Yonir'.

Giannino.

To iall whom it may concern Be it known that I, liinnALQUIs'na slib-lject of .theKing' of j Sweden, vresidin at Schenectady, county ofSehenectady,btate of New York, havev invented certain new and usefulImprovements in Gearing, of7^ which the following is a specification.

rllhe present linvention relates to helical gearing of the multiplereduction type wherein power jis transmitted between high inparallehsnch intermediate speed shafts carrying suitable Vgearing formeshing with the high speed pinion means and the low Speed gear wheelmeans. This is a known arrang'eineiitof gearing andwhile it isihere,

referred to particularly as being a vreducsV tion gearing, it will beunderstood ofcourse,

`that any such arrangement isnot:necessar` ily limited to such use, butmay be used foi` speed multiplication as well.V

One of theproblenis in connection with the gearing of theA abovereferred to type is to obtain and maintain equal division of the ,loadbetween or` among the intermediate 'speed shafts so that. each transmitsfits proper shareof 'the total load Vand one of the objects ofmyinvention is to .provide anV improved arrangement which willaccomplishthis result in a very satisfactory-manner. l A gearing when designed fortransmit ting large power has of necessityl compara.

tively widev faces, especially -in the; low 5 speed end, vand thedifficulty in obtainingv propei aliiiement and uniform meshing be.-tween gear wheels having wide faces iswell understood. A further objectof my invention is to provide an improved arrangement or structure in amultiple reduction gearing, wherein the difficulties of obtainingcorrect anduniform meshing between the` gear wheels is toa great extentlessened or overcome because of thereduction in width fof face of eachindividualv pinion and wheel be novel and my invention, attention isdi-V *Fig 2 is a diagrammatic view of a gearing;

in mesh.

For a consideration of what I believe to rected to' thefollowingspecification, and the claims appended thereto.V

In thefdra'wing, yFigure l is a side tion of a gearing embodying myinvention;

Specication'o'f Letters Patent. Apiication sied June 22', 191s."v,serial No. 241,347.1

elevaof anotherfmodiication.

'Patented Ano, si, i920# Fig.` 3 is -a detail view showing a springsup-'f port for a shaft end5Figs. 4 and 5 are dia-1 grammatic end viewsof other .forms of i gearing, and Fig. 6 isa diagrammatic'viewA Incarrying out my invention, Ivprov-ide on the high speed .shaft a doublehelical` or herringbone pinion." comprising two' parts, members orhalves,"one havingrighthaiidxhelical teeth and theother left handhelical'teeth. and I `providel on the low lspeed shaft double Vhelicali'gear` lwheel-means` which. may. be 4`intheformfof one double helicalgear wheel'or morei'than one. VI then v transmit power separately fromeach pinion? member,l part or- 'half, to Asaid double helical:

gear wheel means' `through intermediate 'foi speed shafts each of-whichcarries a' gear wheelhaving single helical kteeth andv a-'pin- In theVcase of ya double reduction gearing the gear wheel on each intermediatespeedl shaft* meshes withone or the other of the high speed pinionmembers, and the double Y ion'having preferably double helicalteeth.

helical pinion on such shaft meshes with '1 the low speed double.llielicalgear wheel means, which lattermay bein the form of one ormoredouble helical gear' wheels as l pointed out'above. In the'c'ase of areducL .85 tion vgreater thana doublereductionv addi" tionalintermediate gearing is'introduced as is explained hereinafter.

The principles involved in the diagrammatic view shown in Fig. 2.

my inventioni can be best understood by a consideration of' Referring tothis figure, 6 is a high speed' shaft uponwhich is mounted a highspe'edf pinion of the doublehelical or herringbone type such pinion comprisingthe two halves ormeinbers 7 and 8, one having right hand helical teethand"theothery left hand helical teetli.2 The pinion member'7 meshesvwitha gear wheel 9 having single helical teeth and wheel lOhavingsingle-helical teeth. Of theV the. pinion member 8 meshes with a geargear wheels 9 and l0, one has right hand helical teeth and theothe'rfleft, handV helicalv i teeth.` Gear wheels-9 and 1G are'carriedon separate shafts ll andil2 respectively upon which are/double helicallpinions comprising halves or members 13 and 14 in theone case and lorand16 in the other case Pinion members 13,' 14,15 and 16 mesh Ywith singlehelical gear wheels 17, 18, 19 and 2O respec' -tively mounted'onseparate shafts 2]., 22, 23 and 24 and provided with right hand or leftiic hand helical teeth to correspond to the pinion members with whichthey mesh. On shafts 21, 22, 23 and 24 are double helical pinionscomprising halves or members 25 and 26,

and 28, 29 and 30, and 31 and V32, and these pinions in turn mesh withlow speed double helical gear wheels 33, 34, and 36 mountedy on a. shaft37. This forms as will be clear,aY A quadruple reductriple reductiongear. K tion can be effected by carrying the arrangement one stepfarther vwhile a double reduction can be formed by placing gear wheelsV17, 18, 19 and 20 on a common shaft and omitting theremainder of thegearing illustrated. Obviously a multiple reduction of any value may beobtained and a triple reduction is shown only as an example. Now

paratively narrow 'width of face, and hencethe problemof obtaining andmaintainingcorrectv alinement and meshing is materially less diiiicult.'Furthermore, since each of the double helical pinions on shafts 21, 22,23

and 24 is driven from a single helical gear nwheel, such shafts canalways be automatically adjusted or positioned axially by the p inionsto insure correct meshing of such pinioiis ,with the low speed gearwheels 33, 34, 35 and 36. This vwill be lclear when it is consideredthatl the gear wheels 17, 18, 19 and 20 will mesh correctly with pinionmembers 13, 14, 15 and 16 irrespective of their'exact axial positions,for any axial i movement can yalways be taken care of by a -bers orparts 44 and 45.

slight circui ferential movement.

Referring now to Figs 1 and 4 which illustrate specifically a doublereduction gearing emliodying my invention, 40 indiv cates a high speeddriving shaft uponV which is mounted a high speed pinion,comprisingV apinionmember 41'and a pinion member 42'.

One of these pinion members is shownV as having right hand helical teethand the other left hand helical teeth, and they may be con- -sidered asbeing VVeither separate pinions mounted on the same shaft, or, since theteeth on them are complementary, as the wo parts or halves of a pinionof the double helical or herringbone type. 43 indicatesa low speeddriven shaft upon which are mounted thertwo low speed gear wheel mem-The gear wheel members and 45 may likewise be considered as .being twoseparate [gear wheelsf A mounted on a common shaft,or as being the twohalves or parts'of a singleegear wheel.V

New, accordingto my invention, rpower is vwheels thereonfor meshing withpinion rmembers 41 and 42 and with gear wheel transmittedl from the twopinion members 41 and 42 to the two-gear wheel members 44 and 45respectively by two separate and independent shafts, eachhaving suitablegear members 44 and 45. One of these shafts is indicated Yat 46 and'isprovided with'a high speed gear'wheel member 47 which meshes with thepinion member 41 and with a low speed pinion member 48, which mesheswith the low speed gear wheel member 44.f The other shaft is indicatedat 49 and it vcarries a high speed gear wheel member 50which meshes withthe pinion member 42and a low speed pinion member 51, which meshes withthe low speed gear wheel member 45. The y high speed gear wheel members47 and59- -are provided, one with Aright hand helical teeth and theother with left hand helical YV teeth, so as to mesh properly with thepinion members 41 and 42,'and they maybe considered as being separategear wheels or theyY may be considered as being the two halves or partsof a gear wheel having double helical or herringbone teeth, as pointedout' above in connection with pinion members 41 and 42. The shaft 40 isprovidedA with suitable bearings, there being a bearing 52 uponeach sideof the pinion members 41 and 42 and acentral bearing 52u. The shaft 43isy provided with end bearings y53 and an. intermediate bearing 53a. Inthe case of the shafts 46 and 49, l preferably provide only two bearingsfor each, one on eachrside of the low 100 speed Vpinion members 48 and51 respectively, as indicated at 54 in the y'case of the shaft 46and 55in the case of theshaft 49. l

then overhang the high speed gear wheels 47 and 50 on the ends of theshafts 46 and 49 105 i respectively, and support the outer ends of suchshafts on suitable spring supports. 'ln

the presentinstance, these spring supports are shown as comprising asupporting member 56 in which the shaft rotates, and which 110 isguided'verticallyA by a frame 57 provided with grooves 58 in whichtongues on the sup# porting member 56 are guided, Beneath the supportingmembers 56 are suitableV springs 59 whichv are sufficiently heavy tosubstan- 115 Atially balance tie weight ofthe overhung parts. An a1rangement of this character is moreV fully described in myzcoependingapplication, Serial'Numbe'r 241,346, filed of even .date herewith, andas it forms Vthe-'sub- 120 ject matter ofsuch application, thisparticular structure is not claimed herein. Y l

As will be clear, the axial thrust von the shaft 46 due to gear wheel 47is inv one. di-

Vrection andthe axial thrust on Ytheshaft 49 125 due to gear wheel 50 isin the opposite di`Y rection, and in order toibalanceithese axialthrusts I preferably provide the gear wheel member 44 and pinion member48, and gear wheell member 45 and-pinion member 51, 130

connection with it as shown upon each with teeth of the double helicalor herringbone type, and I make the two parts of unequal width thrustson the shafts i6 and i9 are substantially balanced. That 'is to say,

hand part ofv pinion 48 axial thrust ot gear wheel 5() and the lett handpart of pinion 5l is balanced byv the righthand partici1 pinion 5i'.

in the present instance, thegear wheel members i7 ando() are shown asbeing of the nexible type invented by -me and comprising a plurality ofdisks or plates which arev fixed together'at their centralportions andslightly spaced apart at their periphery, so they can yield axiallyunder tooth pressure.' it will be understood, however, thatvmy inventionis not necessarily limited thereto.

lith the above describedr arrangement, it will be seen that have onlyone-halt the width of face to deal with that would be present were thepinion members 8 and 5l and gear wheel niembersii and 5G one continuousstructureA and mounted. upon the` saine shaft, `This is ot particuiarimpor-v tance in the case of the pinion membersiS and 5i and minimizestovdiilicult,T encountered in obtaining correct meshing between suchpinionmembers and the low speed Adriven gear wheel.Y

Anv arrangementjis shown herein'v wherein the high speed pinion membersil and42 `are spaced a considerable distance apart, 'so as to leave alength oi shaft betweenthem,

and the symmetrical arrangement and otherV advantages which results dueto this and to the placing oi the .high-speed gear-wheel members i7 and50 one on each side oi the low speed gear wheel members est and i5 isset forth and claimed in my application Serial No. 210,955, tiledJanuary 9, 1918, and no claim is accordingly' made to such arrangementy72er scin'the present application, l. preferably Vutilize such .anarrangement in connection with the present invention cause ot itsadvantageous ieatures, as set forth in the application just referred to,Yit

' shait, a plurality of intermediate speed' will be understood, however,that the present invention may be carried out in connection withotherarrangements it found desirable.V y

`The vlett hand side of Fig. l shows diagraminatic'ally 'an end view oi'a gearing as shown in Fig l., the view'being taken as look-y v f,

ing towardthe righthand end of Fig. i, Y, it.. single drive asindicatedon the lettmhand side i`igf2may befutilized alone, or itdesired a second drive may beutilized in y the right hand side of Fig.4t wherein the same reference numerals are used to indicatecorresponding parts, except the exponent a is applied thereto, thusproviding a double as shown so that the axial the'axial i thrust or".gearl wheel 47 and the right hand part of pinion i8 is bala'ncedbyv thelettA and likewise thel a great "extent the `l-arly described and theinvention can be- Y.

Y members. Y

drive. Such a double drive arrangement may be'very advantageously usedfor example, in the case `of a marine installation wherein a 'highpressure turbine and a -low pressure turbine are provided having 'sepa-rrate shafts, one 'being connected to the driv-` i* ig. 'i except thatytheV pinion members 60 drive the gear wheel members 6i through two setsof intermediate gear wheels which transmit the load in paralleli. Oneot' such intermediate sets is indicated. at 62 and the other at 63.

ln Fig. 6 llhave shown another form which vmy invention may ta re whichdiffers from Fig. lk in that all the low speed pinions Ymesh withthesemelow speed gear wheel, there being twol such pinionsin the presentinstance. twol pinion members 65 and 'G6 and thelow speed gear wheeimeans comprise the double helical gear' wheel G7. Power is transmittedtrompinion member' to gear 'wheel 67 by 's-iinglehelical gear wheel 68and low speed member. Goto gear wheel 67 by single helical f gear wheel7 i and lowv speed double helicai pinion 72 both carried by shaft 73. Agearv Y ing-as shown in this figure ismoreparticu- Y claimed and formsthe subject matter of my application Serial No. 205,064,1iled November20. 19,17.` f Y ln vaccordance withthe provisions of the patentstatutes, have described the prin-v ciple oi operation of with theapparatus which l' nowconsider to represent the best embodiment thereof;but 'desire to have-it understood that the apparatus shown' is onlyillustrative, and that be carried out byother IIIGLIISL n What vclaiinasnew and vdesire to'seciire Vby Letters Patent'oi" the United States,is

the combination Aof Y a l. in a gearing, 1

hand and lett hand high speed shaft, right is indicated an arrangementlThe high speedfpinion'comprises my invention together helicalpinion'members thereoin'a low .speed shafts through which power istransmitted between the high speedshattrand the low speed shaft, and*Vav helical gear wheel hav-ing from izo only one et saidpinion membersandL the other intermediateV speed power from only the other 2. in agearing, lthecombination speed shaft, a right member thereon landpiniony member thereon,

a left hand helical shaft transmitsl ot lsaid pinion ora higiii handhelical pinion f a low speed. shatt"..

Y throng-h which Y thereon which Vhelical pinion member only, a secondinter- VVmediate sneed shaft a Yleft hand helical Qear y speed shaftiFifl'h hand intermediate speed shafts through which power is transmittedbetween the high speed shaft and the low speed shaft, a helical gearwheel on one of said intermediate speed shafts having single helicalteeth which mesh with saidright hand helical pinion member only, and ahelical gear wheel on another Vof said intermediate speedshafts havingsingle helical teeth which mesh witf Vsaid left hand helical pinionmember onl.Y .V ln a gearing, the combination of hig speed shaft,righthand and left hand helica Ypinion members thereon, a low sp ed chaiplurality of interined i rspeed shafts power is transmitted from oneAshaft to the other,

wheel and a double helical pinion on ea `h intermedi" te A helical gearwheels meshing each with-one only of said pinion members on the highspeed shaft.,

ln a gearing, the combination of a high speer. shaft, right hand aA dleft hand helical pinion members thereon, a

low speed shaft, wheel means thereon, an intermediate sneed shaft, righthand helical gear wheel meshes with said right hand wheel thereon whichmeshes with said left hand helical pinion member only, and pinions oneach of said intermediate speed shafts thro' gli which power istransmitted to said low speed gear wheel meansv 5. ln gearing, thecombination of a higii speed shaft, right hand and left hand helicalpinion members thereon, a low speed shaft, gear wheel means thereon, anintermediate speed shaft, a right hand helical w eel thereon whichmeshes with said right' h nd helicalpinion member only 'a second interiisaid left d pinwheel thereon which meshes with hand helical pinionmember only, an

Y ions onv each of said intermediate speed shafts which mesh with saidlow speed gear wheel means.

a Y 6. ln'a ocaring, the combination of a high Yspeedshaft, right handand left hand helical Vpinion members thereon, a low speed shaft, doublehelical gearwheel means thereon, an intermediate speed shaft, a righthand helical gear wheel thereon which meshes with said `right handhelical pinion member only, aV second intermeniato speed shaft', a leftY 'hand Yhelical gear wheel thereon which `meshes with said left memberonly,

hand helical pinion and doiible helical pinions on each ofV saidintermediate speed shafts through which power is transmitted to said.low speed gear wheel means.

V.7. In a gearing, the combination of high pinion members thereon, a lowspeed shaft, double helical gear wheelmeans thereon, an

and ai single helical Y speed shaft, saic single pinion with doublediate sprecoL shafh a left hand heli( al gear members each of gear wheelmembers.

Y helical teeth,

and left hand helical.

intermediate speed shaft, a right hand heli-v cal gear wheel thereonwhich meshes with said right hand helical pinion member only, a secondintermediate speed shaft, Ya left` hand helical gear wheel thereonVwhich meshes with saidleft'hand helical pinion` member only, and doublehelical pinions on'. d in r lL speed shafts which Y mesh with saidV lowspeed gear 'Wheel means.

8. ln a gearing, the combination of a high l speed shaft, a high speedpinion thereon comprisingtwo members one of which has right hand helicalteeth and the other left hand helical teeth, aA low speed shaft, gearwheel meansV thereon with double helical teeth, intermediate speedshafts through which power is transmitted between the pinion'menibersand the gear wheel means, and a gear wheel with single helical teeth anda l0. In a gearing, the combination ofY a high speed shaft,Y two pinionmembers mounted thereon, one of which has right hand helical teeth andthe other left lhand helical teeth, a low speed shaft, a plurality ofgear wheel members mounted thereon,y each of 4which has double helicalteeth, and independent sets of intermediate gear wheel which setstransmits power between a pinion member. and certain'of the 1l. In agearing, the combinationrof a l high speed shaft, two pinion membersmounted thereon, one of which has rightV hand helical teeth and theother left hand a low speed wheel members mountedV thereon, each ofwhich has double helical teeth, a plurality of intermediate speedshafts, and gear wheels on said intermediate speed shafts 'whichtransmit power between the pinion members Y andthe gear wheel members. Yl2. In a gearing, the combination ,of a

high speed shaft, two pinion members there'-V on, one of which has righthand helical teeth and the other left hand helical teeth, a'low 125'y.speed shaft, two gearwheel members there1 1 on each having' doublehelical teeth, an inshaft associated with each and helical gearing meanstermediate speed pinion member,

on each intermediate speed shaft fortranshelical teeth on each in- S5shaft, two gear 1'15VKV mitting power between such pinion member and agear Wheel member.

driving shaft a air of )inion membersv mounted in spaced relationthereon, one lof which has right hand helical teeth andthe other lefthand helical teeth, va driven shaft,

i; a pair of gear Wheel members mounted thereon each having doublehelical teeth, a pair of intermediate speed shafts, gear 4Wheels on oneof such shafts whichtransmit power from one of said pinionrmembers'toone of said gear Wheel members, 'andgear wheels on the other of suchshafts Which transmit power from the other of said pin-A ion members tothe other of said gear Wheel members. f f- 15. In combination, a lowspeed shaft, a pair of gear Wheel members mounted thereon, a high speedshaft, a pair of vpinion members mounted thereon, one on each side ofthe gear Wheel members, a pair of axially alined intermediate speedshafts, lon7 speed pinion members mounted on the adjacent ends of saidaxially alined shafts and mesh'- ing With said low speed gear Wheelmembers, and highV speed gear Wheel'members mounted on other ends ofsaid axially'almed shafts and meshing with said high speed`pinionmembers. y

16. In combination, a loW speed shaft, va pair of gear Wheel membersmounted thereon, a high speed shaft, a pair of pinion members mountedthereon, one on each side of the gear Wheel members, a pair of axiallyalined intermediate speed'shafts, lovv Vspeed pinion members mounted onthe adjacent ends of said axially alined shafts and meshing with saidlow speed gear Wheel members, and high speed gear Wheel members mountedon the other ends of said axially alined shaftS and meshing With saidhigh speed pinion members, said lovv speed pinion members and low speedgear Wheel members being of the double helical type and said high speedpinion members and high speed gear Wheel members being of the singlehelical type.

17. In a gearing, the lcombination of a high speed shaft, a pair ofpinion members mounted thereon, one of which has right hand helicalteeth and the other left hand helical teeth, a low speed shaft, a pairof gear Wheel members thereon, each of which multe speed shafts whichtransmits power f has doublehelical teeth, a pair of-Vintermei VdiatesJeedl shafts 'ear'vvheels on one'of said intermediate speedshafts whichtrains'- mit `power between oneof said pinion members and oneV of saidgear 'Wheel members, and gear Wheels on the other of saidintermediate-,speed shafts' Which transmit power between the otherofsaid pinio-nmeinbers and the Vother of said gear Wheel members,

thegear wheels on said'intermediate speed shaftsv having teeth tocorrespond to the members With which they mesh.

18. In a gearing, the combination of a.

Y gear Wheels on each such intermediate speed shaft for transmittingpower from a pinion member to aloW speed gear Wheel member, and meansfor balancing theaXial thrustson said intermediate speed shaftsvoccasioned by the right and left handhelical teeth of said' pinionlmembers.

19. In a gearingfthe combination of a high speed shaft, a pair of pinionmembers mounted thereon, one ofv Whichhas right hand helical teeth' andthe `other left hand helical teeth, a Vlow speed shaft, a' pair of gearVWheel members thereon, an interme-'fV diate speed shaft associated' witheach pin-l Y ion member, gear Wheels, onV each such inter-rv mediatespeed shaft for` transmitting power from av pinion member to'a low speedgearl Wheel member, said lo'vv speedrgear Wheell member'sand thegearWheels meshing there-l Withhaving right hand and left hand helical teeththereon whichV are unequal'asto- Width so as to balance the axial thruston said intermediate shafts.

20. In a gearing, right hand and left,-

hand yhelical pinion members, means -connecting them Which permitssaidjmembers to adjust themselves relatively to each other,

a loW speed shaft, a plurality of intermedii members. 4

2l. In a gearing, a right hand and a left hand helical pinion member,means connecting them which permits said members to adshaft which mesheswith one of said pinion justthemselves relatively to each other, a f

lowspeed shaft, gear Wheel means thereon, an intermediate speed shaft, aright yhand helical ygear thereon which meshes with said right jhandhelical pinion member only, a

second intermediate speed shaft, a left hand:

helical ear Wheel thereon which meshes With sai left hand pinion memberonly,and

Vse

pinions on each of said intermediatel speed shafts which mesh with saidlow speed gear wheel means.A Y Y 22. InVV a gearing, a high speed pinioncomprising two members `one of' which has right hand helical teeth andthe other left -hand helical teeth, means connecting said pinions whichpermit themv to adjust themselves relatively to each other, a low speedshaft, gear wheel means thereon, intermedi ate speed shafts throughwhich power, isV

\transmitted between the pinion Vmembers and the gear wheel means, and agear w ieel Vwith singleyhelical teeth and a low speed pinion on each ofsaid intermediate speed shafts, each of said single helical gear wheelsmeshing with one only of said pinion members. v

23. In a gearing., right hand and left hand helical pinion members,means connectingsaid members wherebythey can adjust themselvesrelatively to each other, a low speed shaft, two gear wheel membersthereon each having double helical teeth, `an intermediate speed shaftassociated with each pinion member, and helical gear wheel means on eachintermediate speed shaft for transmitting power between such pinionmember and a gear wheel member.

V24. In combination, a low speed shaft, gear wheel means mountedthereon, a pair of pinion members one on each side of the gear wheelmeans, means connecting said pinion members whereby they can adjustthemselves relatively to each other, a pair of intermediate speedshafts, low speed pinion 'members mounted Yon said intermediate speedshafts and meshing withV said low speed gear wheelV means, and a highspeed gear wheel member mounted on each of said intermediate speedshafts and meshing with bers.

25. In a gearing, a pair of pinion members, a length of shaft connectingthem one only. of said'high speed pinion memwhereby said pinion memberscan adjust Y wheel means thereon, a pair ofintermediate speed shafts,gear wheels onA one of said intermediate speed shafts which transmitpower between one of said pinion members only and said gear wheel means,and gear wheels on the other of said intermediate speed shafts whichtransmit power between. the other of said pinion membersonly and saidgear wheel means. Y' 26. In a gearing, the combination of a high speedshaft, a plurality of pinion members thereon, a low speed shaft, aplurality of intermediate speed shafts, and gear wheel means on eachintermediate speed shaft which transmits power fromV one only of saidpinion members to said low speed shaft. 27. In afgearing, Vthecombination of a high speed shaft, two helical pinion Vmem-V bersthereoma low speed shaft, gearwheel means thereon, an intermediate speedshaft, a helical gear wheel thereon which meshes with one only of said'helical pinion members, a second intermediate speedshaft, a

helical gear wheel thereon which meshes f with the other only of .saidhelical pinion members, and low speed pnnons on each ofk saidintermediate shafts through which power is transmitted tosaid low speedgear wheel means. Y y 1 ln witness whereof,'l have hereunto set my handthis 20th day of June, 1918.

KARL ALQUIST. j

